A micrometer screw gauge is being used to find the diameter of a copper wire. With the wire inserted, the reading is shown in diagram 1. The wire is then taken out and the jaws of the micrometer are closed. The new reading is shown in diagram 2. State the diameter of the wire.
- A$1.90\,\text{mm}$
- B$2.45\,\text{mm}$
- C$2.59\,\text{mm}$
- D$2.73\,\text{mm}$